The introduction of
new asbestos tile producing method
Long-filter-net method
Based on the process principle of circular-filter-net asbestos producing method and pulp fluid asbestos producing method, “Long-filter-net and Guniting”innovative asbestos tile producing method was born in 2013 which has granted “utility model patent” and several “invention patents” through two decades of practice and research.
“Long-filter-net and Guniting” asbestos tile producing method solved the core technique problem,such as material layer is hard to dehydrate,forming fabrics build up frequently trough the producing process of
Fiber reinforced calcium silicate sheet.And this new method elevates the capacity of machine,upgrades the product quality and lowers the cost of product which lays a foundation for new product development.
“Long-filter-net"method technological characteristics
“Long-filter-net and Guniting” asbestos tile producing method(Long-filter-net method for short) consists of long filer net and guniting work.Long filter was defined by comparison with mould whose available outer net is too short.
“Long-filter-net and Guniting” asbestos tile producing method is used for Calcium Silcate board and cement board which can produce fiber cement board,pipe and tile simultaneously.
Production technique introduction to
Long-filter-net method
Long-filter-net method process principle
As shown below,there are a guniting unit(AKA sole-core long net main engine ) and three
guniting units(AKA three-core long net main engine).
Couch roll12 presses on the mould14 by forming fabrics13.Forming fabrics run to drive couch roll12 and Polyester Forming Fabries11 running at same speed.High level tank1 contains slurry which was treated with a high speed evener to be smooth and then then was sent to pulp shooting device8 via slurry pressure machine3 in an enclosed space.After that,the slurry was homodispersing in high-intensity and then shoot from pulp shooting machine8 which is in full-width broadcaster at constant speed and stable volume in rectangle cross section shape. The slurry shoot to the forming net11 of the material layer vacuum dehydration forming machine15 and form first material layer by dehydration according to vacuum box10.A final material layer which consist of many first material layers absorbs water from the upper material layer of forming fabrics13 via vacuum box26.Then moisture bearing material layer via forming fabrics13 was swathed on the cylinder21.And the layer was compacted and until it reaches the standard of material preform.At last,we pull it down and go on next stage.
20.breast roll 21.cylinder 22.auxiliary breast roll 23.anti-slanting adjusting roller 24small material shut-off mechanism 25.forming fabrics vacuum box 26.main vacuum box 27.auxiliary vacuum box 28.High-frequency-oscillation deslaging machine 29.washing machine 30.wringing roller 31.thickness test device32.electric or hydraulic tension device (stalling spot could be front or back)
Nine advantages of long-filter-net method
“Long-filter-net and Guniting” asbestos tile producing method(Long-filter-net method for short) consist of long filer net and guniting work.Long filter was defined by comparison with mould whose available outer net is too short.
“Long-filter-net and Guniting” asbestos tile producing method is used for Calcium Silcate board and cement board which can produce fiber cement board,pipe and tile simultaneously.
The main features of Long-filter-net method:
1.Long-filter-net method can make first layer of plate blank own equithickness.
2.The dehydration cover of Long-filter-net is six times as large as hatschek.
3.Long-filter-net method can pile up many small material layers to form a unit material layers.
4.Long-filter-net method is hard to block compared with hatschek and slurry producing method.
5.By Long-filter-net method,laminator can realize automation in material moisture rate,density control and reduce the dependence degree of experience operation.
6.Long-filter-net method can produce product which used same board but different material,color and structure.
7.Machine capacity is 1 to 1.5 times as large as hatschek and slurry producing method.
8.Long-filter-net method provides a good platform in order to develop new production, increase the kinds of productions, modify materials and increase product value.
9.Long-filter-net method and facility are suitable for high capacity produce:Chrysotile asbestos calcium silicate board/cement board and low, medium density 100% asbestos-free calcium silicate board/cement board.
Yunnan prosperity industrial corporation
http://www.cw960.com
2017/4/20
Others.
Long net process is used in following fileds:calcium silicate board,fiber cement board and asbestos tiles.
According to the capacity requirements, quality requirements, varieties of different requirements, they can be classified as single-core host, dual-core host, three-core host and multi-core host.
Please contact us if you have specific requirements.
Notice：
We are look forward to hearing from your letter. By the way, please make sure your mailbox is valid, namely your mailbox can receive our letters sent by our mailbox(such as zlx@960.com or cw@960.com etc.)
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